C552 drum swap error

[mrfuser]

Took a good set of drums from a c552 and installed a couple in another c552 with a couple of bad drums. We now get a c2554 and c2556 error. Some reason we can't swap drums from one machine to another? Same exact model machines.

[allan]

You have to change the chips with new ones when you change the units.

The toner to carrier ratio on the units are different that is the reason for your codes.

It will initialize the TCR value when it reads the new chip and the IU's will work or not.